38.5mm Stacker

Designed for the world’s most popular 1 oz silver coins

Overview

38.5 Stacker

Design

38.5 Stacker

Dimensions

Feature Value
Inner Diameter 38.5 mm
Base Diameter 50.0 mm
Total Height 87.5 mm
Cap Height 14.0 mm
Tube Height 73.5 mm
Base Recess -0.5 mm
NFC Badge Slot Ø25 mm × 1 mm (snap-fit)
  • Primary Use: 1 oz silver coins
  • Part Numbers:
    • Tube: T-38
    • Cap: C-38

38.5 Stacker

Compatible Coins

Coin Name Diameter Thickness Mint
Canadian Silver Maple Leaf (1 oz) 38.00 mm 3.15 mm Royal Canadian Mint
American Silver Eagle (1 oz) 40.60 mm 2.98 mm United States Mint
Austrian Silver Philharmonic (1 oz) 37.00 mm 3.20 mm Münze Österreich (Austrian Mint)

Note: This stacker is designed for standard 1 oz silver coins around 38 mm in diameter. Coins significantly smaller than 38 mm will not fit securely and should use a smaller stacker size.

Specifications

  • Recommended Coin Diameter: 38.0–38.6 mm
  • Typical Coin Thickness: ~3.2 mm

Capacity

  • Standard tube (73.5 mm height): Holds ~20–25 coins depending on thickness and capsule use
  • Designed for standard 1 oz silver coins
  • Accommodates slight variations in diameter
  • Perfect for international silver bullion

Magnetic System

Magnet Type: Ceramic/Ferrite, 25 mm × 4 mm thick

  • Locations:
    • Lid (South polarity up / hole down)
    • Base (North polarity up / hole up)
  • Configuration: Embedded into each part during printing

NFC Integration

  • Tag Type: NTAG215 (25 mm round)
  • Placement: Inserted into badge slot after printing
  • Scan Area: NFC badge face
  • Compatibility: Most NFC-enabled smartphones

Technical Notes

  • Ideal for collectors storing large volumes of silver
  • Larger base diameter for enhanced stability
  • NFC scan location easily accessible
  • Strong dual-magnet design for vertical stacking

Model Files

  • 3D models files are available on Cults 3D! Cults 3D

Navigation

Required Components

See the Bill of Materials for full details.

  • Tube STL file (T-38.stl)
  • Cap STL file (C-38.stl)
  • NFC badge (badge-38.5.stl)
  • 2× Ceramic/Ferrite magnets (25 mm × 4 mm)
  • 1× NTAG215 NFC tag